Prime Factorization of 165

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Prime Factors of

What is the Prime Factorization of 165?

Answer

Prime Factors of 165:
3, 5, 11

165 = 3 × 5 × 11 · composite · 8 factors

Division ladder

1653
555
1111
1

Left: what is left; right: the smallest prime that divides it; 1 at the bottom.

Second way — factor tree
165355511

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Recalculate with different values ↑

Prime Factorization Table

NumberPrime Factors
1502 × 3 × 52
151151
15223 × 19
15332 × 17
1542, 7, 11
1555, 31
15622 × 3 × 13
157157
1582, 79
1593, 53
16025 × 5
1617, 23
1622 × 34
163163
16422 × 41
1653, 5, 11
1662, 83
167167
16823 × 3 × 7
169132
1702, 5, 17
17132 × 19
17222 × 43
173173
1742, 3, 29
17552 × 7
17624 × 11
1773, 59
1782, 89
179179

FAQ

What is the Prime Factorization of 165?

Prime Factors of 165: 3, 5, 11

How many prime factors does 165 have?

Number 165 has 3 prime factors, all different.

How can you check the prime factorization of 165?

Multiply the factors back together: 3 × 5 × 11 = 165. Every factor is prime, so nothing splits any further and this decomposition is the only one that exists.

See Also